JPH11226478A - Roller take-out apparatus from continuous coating machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a roller take-out device from a continuous coating machine capable of automatically taking out rubber rollers after the coating an assigned number of times with the continuous coating machine. SOLUTION: At the time of coating with the continuous coating machine, the application of a coating material is executed while the rubber rollers used for the first coating with the coating material are detected by a start detecting sensor. The coating of the rubber rollers with the coating material a prescribed number of times is detected by a chain guide detecting sensor. After the rubber rollers are coated with the coating material the prescribed number of times, the movable receiving member 17 of the roller take-out device 16 is advanced in the roller take-out position and a rubber coated with the coating material first is taken out first, and then others in order.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for removing a roller from a continuous coating machine.

[0002]

2. Description of the Related Art Conventionally, a developing roller used in so-called OA equipment such as an electrophotographic apparatus and an electrophotographic apparatus,
Rubber rollers such as a charging roller, a transfer roller, and a cleaning roller are known. Generally, such a rubber roller applies a paint to the roller surface.

[0003] Conventionally, such a coating on a rubber roller has been carried out.
As shown in FIG. 11A, a dip method is employed in which the rubber roller 101 is dipped in a paint storage tank 103 in which the paint 102 is stored, and then dipped and applied.

However, in the case of such a dip method, a dripping 102a is likely to occur in the length direction (see FIG. 11B). Therefore, it is necessary to reverse the rubber roller 101 and immerse it again in the paint storage tank 103 (see FIG. 11C), and the application operation is troublesome. In addition, the processing efficiency of one rubber roller requires a long time of 40 s to 60 s, so that the coating efficiency is low. In particular, when the paint contains a high boiling point solvent, the tendency was remarkable.

Accordingly, the applicant has developed a continuous coating machine that applies a coating material to the surface of a roller by passing the rubber roller horizontally while rotating and transporting the coating material while passing the coating material on a coating tank for storing the coating material. Filed.

Incidentally, as a part of the coating process for applying the paint to the roller surface of the rubber roller as described above, there is a demand to automatically take out the rubber roller from the continuous coating machine after the paint application is completed. .

[0007]

The continuous coating machine as described above is conveyed by a roller conveying means while rotating a roller to be processed, over a storage tank in which a liquid coating material is stored. A coating material is sequentially applied to a plurality of rubber rollers on the roller surface. It is necessary to uniformly apply the paint to all the rubber rollers and then take out the coating material.

[0008] The present invention has been made in view of the above point, and after a specified number of coatings by a continuous coating machine, the rubber roller after coating can be automatically removed from the continuous coating machine. An object of the present invention is to provide a device for removing a roller from a machine tool.

[0009]

According to the first aspect of the present invention, a roller to be processed is conveyed by a roller conveying means over a storage tank in which a liquid coating material is stored, so that the surface of the roller is coated. A roller take-out device from a continuous coating machine that takes out a roller to be processed from a continuous coating machine of a coating material on a roller surface to which a coating material is applied, and a roller that monitors a roller to be processed to which a coating material is first applied. Monitoring means, a number-of-coatings detecting means for receiving a signal from the roller monitoring means and detecting that the roller to be processed has been coated a predetermined number of times, and a movable receiving member; After receiving a signal from the detection means and after a predetermined number of coatings, the movable receiving member is moved to remove the roller from the roller to be processed which has been coated first. It is those with a door.

According to the first aspect of the present invention, at the time of coating by the continuous coating machine, the coating material is sequentially applied while the roller to which the coating material is applied first is monitored by the roller monitoring means. Based on the roller to which the coating material has been applied first, the number of application times detecting means detects that all the rollers to be processed have been applied a predetermined number of times. Then, after a predetermined number of coatings are performed on the rollers to be processed, the movable receiving member of the roller removing means is moved, and the rollers are sequentially removed from the roller to be processed which has been coated first.

According to a second aspect of the present invention, in the apparatus for removing a roller from the continuous coating machine according to the first aspect, the roller removing means has a roller receiving portion in an inclined state and moves between a roller removing position and a standby position. The apparatus comprises a movable roller receiving base, and a roller stock table which is provided continuously with the roller receiving base and stores the rollers to be processed taken out by the roller receiving base.

According to the second aspect of the invention, when the roller to be processed is taken out after the roller to be processed has been coated a predetermined number of times, the roller receiving base is moved from the standby position to the roller take-out position, and the roller receiving base is tilted. The rollers to be processed are sequentially taken out via the roller receiving portion. The removed roller to be processed moves to a roller stock table that is continuous with the roller receiving table and is stored.

According to a third aspect of the present invention, in the apparatus for removing a roller from a continuous coating machine according to the first or second aspect, the roller transporting means comprises: a left and right endless chain belt driven to rotate; A right and left roller receiving member attached to the chain link to be engaged with the roller to be processed from below, and a connecting plate for connecting the left and right roller receiving members. The member is moved under the roller to be processed between the left and right endless chain belts.

According to the third aspect of the present invention, the left and right roller receiving members are engaged with the rollers to be processed from below, and the endless chain is maintained while the distance between the left and right roller receiving members is kept constant by the connecting plate. It is conveyed by the rotation drive of the belt. In this transport state, at the roller take-out position, the movable receiving member is moved under the roller to be processed between the left and right endless chain belts, and the roller to be processed is removed from the roller receiving member and taken out.

[0015]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a schematic configuration of an apparatus according to the present invention.
In FIG. 3, reference numeral 1 denotes an apparatus for applying a paint to the roller surface, and a state in which a rubber roller 3 (a roller to be processed) is laid down by a roller conveying means 2 (that is, a state in which the axis is horizontal).
The coating (liquid coating material) is always passed over a coating tank 4 (storage tank) that is stored in an overflow state while being supported and rotated on the roller. While passing through the drying furnace 5 continuously while maintaining the same, the three heater devices 6
Hot air drying is carried out in an atmosphere of up to 120 ° C.

In the coating tank 4, since the paint is circulated and the paint is always stored in an overflow state, a constant liquid level is maintained. An exhaust fan device 7 is provided.

The rubber roller 3 is, as shown in FIG.
A cylindrical rubber member 3b is attached to and integrated with the outer peripheral surface of the cored bar 3a, and is a roller after vulcanization is completed.

Here, as the rubber member 3b, natural rubber, chloroprene rubber, styrene / butadiene rubber, ethylene / propylene rubber, butyl rubber, acryl / nitrile / butadiene rubber, silicon rubber, urethane rubber,
Crosslinked rubbers such as fluoro rubber, halogenated butyl rubber, chlorosulfonated polyethylene rubber, hydrogenated nitrile rubber, epichlorohydrin rubber, and copolymers using these monomers, blends thereof, and polyolefins And thermoplastic elastomers such as polyester, polyether, polyamide and polyurethane.

The rubber member 3b contains a foaming agent, such as azodicarbonamide, azobisisobutyronitrile, diazoaminobenzene, dinitrosopentamethylenetetramine, p-toluenesulfonylhydrazide, and the like. p, p'-Oxybis (benzenesulfonyl hydrazide) and the like are preferably used. This foaming agent is used for the rubber roller 3 obtained by foam molding.
It is desirable to set the blending amount so that 50% by volume becomes bubbles. That is, if the content is less than 0.5% by volume, the desired effect cannot be obtained, while if it exceeds 50% by volume, the elastic modulus of the rubber roller 3 becomes too low.

The rubber member 3b contains an electric resistance adjusting agent. As the electric resistance adjusting agent, carbon black is suitable, and in addition, graphite, conductive metal particles, or various surfactants can also be used. In addition, the rubber material may contain various softeners for the purpose of adjusting the hardness of the rubber roller 3 (to reduce the hardness). As the softening agent, mineral oils such as aromatic, naphthenic and paraffinic oils, DOP, DOA, D
Plasticizers such as OS and vegetable oils such as rapeseed oil and coconut oil can also be used.

Further, a rubber chemical and a rubber additive can be compounded in the rubber member 3b as required. Examples of rubber chemicals and rubber additives include vulcanizing agents such as sulfur and peroxide, vulcanization accelerators such as zinc white and stearic acid, and vulcanizing agents such as sulfenamides, thiurams, thiazoles, and guanidines. Sulfuric accelerators, ultraviolet absorbers, ozone deterioration inhibitors, tackifiers, etc. can be used, and various reinforcing agents, friction coefficient modifiers, and inorganic fillers such as silica, talc, and clay can also be selected arbitrarily. I can do it.

As shown in FIG. 1, the roller conveying means 2 includes a pair of left and right driving sprockets 12 and 12 driven by a driving motor 11 and a pair of driving sprockets 12 and 12 driven by an air cylinder. A pair of left and right driven sprockets 14 and 14 whose distance is adjustable, and a pair of right and left chain belts 15 and 15 wound therebetween.
And an upper linear transport portion 2A and a lower linear transport portion 2
B, and curved transport portions 2C and 2D connecting them.

A roller loading section for loading the rubber roller 3 to which the paint is applied into one curved transport section 2C is provided.
Roller unloading sections for unloading the rubber roller 3 on which the paint has been applied and dried are provided on the other curved transport portion 2D.

The rubber roller 3 conveyed by the roller conveying means 2 is used for applying and drying the paint on the roller surface in the upper linear conveying portion 2A, and for cooling after drying in the lower linear conveying portion 2B. Is performed. Therefore, coating is performed a plurality of times to form a thick film.
In the case of so-called recoating, the cycle of coating, drying and cooling is repeated as many times as necessary.

The movable receiving member of the roller removing device 16 is formed after passing through the upper straight conveying portion 2A when the coating is performed only once, or after the coating is completed a predetermined number of times when the coating is performed repeatedly. 17 is advanced to the lower side of the rubber roller 3 so that the rubber roller 3 applied first is sequentially applied.
It will be detached from the roller holder 22 described later. Here, since the rubber roller 3 is being conveyed at a constant speed by the roller conveying means 2, the transfer force (rotational force) of the roller conveying means 2 can be obtained simply by moving the movable receiving member 17 below the rubber roller 3. Is removed without difficulty.

As shown in FIG. 5, the movable receiving member 17 has a roller receiving table 17a and a movable table 17b for supporting the roller receiving table 17a in an inclined state.
Between the roller take-out position P12 and the guide member 18
, Can be linearly moved by driving means (not shown). Further, a roller stock table 19 for storing the rubber roller 3 taken out by the movable receiving member 17 is provided at a rear side of the movable receiving member 17 at a rear side thereof. When the rubber roller 3 is taken out, the roller receiving base 17a contacts and supports only the core bar 3a protruding on both sides of the rubber member 3b, and does not contact the rubber member 3b.

The roller receiving table 17a is a movable table 1
7b, the inclination angle is supported so as to be adjustable, and can be adjusted so that the inclination angle is optimal for taking out the rubber roller 3. In addition, the rear end of the roller receiving base 17a always overlaps with the front end of the roller stock base 19, so that the rubber roller 3 does not fall off due to the movement of the roller receiving base 17a. The inclination angle of the roller stock table 19 is also adjustable.

As shown in detail in FIG. 6, the rubber roller 3 is rotatably supported at both ends of a metal core 3a thereof via a magnet 21 and a roller receiving member 22 via a bearing member 23. It is connected to one end of a shaft member 24 (roller support member). A rail member 26 having a sheet-like magnet 25 (rubber magnetic sheet) at an upper portion thereof is provided via a support bracket 27 along the upper linear transfer portion 2 </ b> A in the transfer path of the rubber roller 3.
The magnet 25 is a rail member 26 in this example.
Although the rubber magnetic sheet above is used, the rail member 26 itself may be replaced by a plate made entirely of magnets.

Then, a cylindrical rotating member 28 provided at the other end of the shaft member 24 moves on the magnet 25 of the rail member 26 by a vertical magnetic force generated between the magnet 25 and the rotating member 28. The roller rotation means which rotates while receiving the horizontal transfer force of the roller transfer means 2 and causes the rubber roller 3 to rotate and to horizontally transfer without causing rotation unevenness. In addition, the lower linear transport portion 2B and the curved transport portion 2C,
A portion corresponding to a substantially lower half of the 2D is provided with a fall prevention member 3 for preventing the rubber roller 3 from falling in the case of multi-coating.
1, 32 and 33 are provided continuously (see FIG. 1).

The support bracket 27 is provided with a chain guide 34 through which a chain link 15a of the chain belt 15 engages in parallel with the rail member 26 via a mounting bracket 35, so that the straightness of roller conveyance is ensured. Therefore, stable conveyance is performed.

As shown in detail in FIGS. 7 and 8, the roller receiving member 22 is provided upright on the chain link 15a of the chain belt 15, and an intermediate portion of the shaft member 24 is provided with a bearing member 23 above the roller receiving member 22. A concave portion 22a that is rotatably supported through the recess 22a is formed. The upper portions of the corresponding left and right roller receivers 22, 22 are connected to each other via a left-right connecting plate 41 so as to maintain a constant interval therebetween.

As described above, the rubber roller 3 is conveyed while rotating on the coating tank 4 in which the coating material is stored in an overflow state, so that the coating material can be easily applied to the roller surface of each rubber roller 3. However, as shown in FIGS. 9 and 10, the coating tank 4 has a parallel center line inclined at a fixed angle (15 ° in this example) with respect to the conveyance direction of the rubber roller 3 in plan view. It is formed in a quadrilateral shape. Accordingly, the paint in the coating tank 4 is gradually applied from one end to the other end in a spiral manner on the roller surface as the rubber roller 3 is transported while rotating. Is drained at the other end without causing dripping problems.

The coating tank 4 is slightly lower than the coating tank 4 and has a round receiving tank 51 for receiving the paint overflowed from the coating tank 4 so as not to stain the surroundings. . A paint supply elbow 4a is connected to the center of the bottom surface of the coating tank 4, and a paint discharge pipe 51b is connected to a corner bulging portion 51a of the orbiting receiving tank 51.

By the way, as shown in FIG. 6, in order to detect the number of times of application to the rubber roller described above, the rubber roller 3 where the application is first started is placed on the side of a roller receiving member 22 which supports the rubber roller 3 from below. Is provided with a detection dog 42, and a start detection sensor 43 for detecting the dog 42 is provided at a specific position of the support bracket 27. The support bracket 27 is provided with a chain guide detection sensor 44 at a position below the start detection sensor 43 so as to detect the number of chain guides 34 that have passed. And the start detection sensor 4
3 and the rubber roller 3 to which the paint (coating material) is first applied by the chain guide detecting sensor 44.
Roller monitoring means for monitoring the (processed roller) is configured. The start detection sensor 43 and the chain guide detection sensor 44 are linked to a microcomputer (not shown), and the microcomputer receiving signals from the sensors 43 and 44 is applied to the rubber roller 3 a predetermined number of times. Function as means for detecting the number of coatings for detecting the number of coatings.

With the above construction, the rubber roller 3
Is loaded from the roller loading section of one curved transport portion 2C. At this time, the rubber roller 3 to which the paint is first applied is set on the roller support 22 provided with the detection dog 42. Subsequently, the rubber rollers 3 are sequentially set, and each of the rubber rollers 3 is moved to the upper linear transport portion 3A.
, The wafer is conveyed while rotating on its axis. At the time of transport, first, the coating material is uniformly applied to the roller surface by passing over the coating tank 4 where the coating material is stored in an overflow state, and the drying furnace 5 is continuously rotated while maintaining the rotation state. And hot air drying is performed, and the coating and drying of the paint are efficiently performed continuously.

When the paint is applied repeatedly, after the drying by the drying furnace 5, the rubber roller 3 is not carried out by the roller removing device 16 but passes through the other curved conveying portion 2D and the lower linear conveying portion 2B. And cooled in the lower linear transport portion 2B.

Then, it reaches the upper linear transport portion 2A via one curved transport portion 2C, and the coating and drying of the paint is performed again, and this is repeated as necessary. In this case, when the lower linear transport portion 2B applies the paint repeatedly, it functions as a cooling zone after the application and drying, except for the final application and drying.

The number of times of recoating is detected by the start detecting sensor 43 detecting the detecting dog 42, and the chain guide detecting sensor 44 detects the rubber roller 3 for which repainting has been completed. The movable receiving member 17 of the roller removing device 16 is moved based on the detection result, that is, after a predetermined number of coating operations, and the transfer force (rotation) by the roller transfer unit 2 is transferred from the rubber roller 3 applied first. Force), and are sequentially taken out. That is, the movable receiving member 17 enters the lower side of the rubber roller 3 between the left and right chain belts 15, whereby the core metal 3 a of the rubber roller 3 is disengaged from the roller receiving member 22 by the conveying force of the roller conveying means 2, and the rubber roller 3 Moves to the movable receiving member 17 side and is taken out without difficulty, and thereafter the rubber rollers 3 are taken out sequentially.

In the above embodiment, the present invention is applied to an apparatus for applying a paint. However, the present invention is not limited to this, and any other apparatus for applying a liquid coating material can be similarly applied. can do.

[0041]

The present invention is embodied in the form described above, and has the following effects.

According to the first aspect of the present invention, at the time of coating by the continuous coating machine, the coating material is applied while monitoring the roller to which the coating material is applied first by the roller monitoring means. The roller to be treated, which has been coated by the continuous coating machine, can be automatically taken out from the continuous coating machine after a specified number of coatings.

According to the second aspect of the present invention, since the roller stock table is provided continuously to the roller receiving table, the roller to be processed is taken out by the roller receiving table after the roller to be processed is coated a predetermined number of times. It can be stored on stock tables.

According to a third aspect of the present invention, the roller to be processed is engaged with the left and right roller receiving members from below, and the distance between the left and right roller receiving members is maintained constant by the connecting plate. Since the rollers are transported by rotary drive, the roller holder is inserted under the rollers to be processed between the left and right endless chain belts in the transport state to reduce the rotational force of the continuous coating machine. The roller to be processed can be detached from the roller receiving member by utilizing.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of an apparatus for applying a coating material to a roller surface according to the present invention.

FIG. 2 is an enlarged front view of a side where a coating tank is provided.

FIG. 3 is an enlarged side view of the same.

FIG. 4 is a perspective view of a rubber roller.

FIG. 5 is a detailed view of a roller take-out device.

FIG. 6 is an enlarged view of a main part of FIG. 3;

FIG. 7 is an enlarged front view of a part of the chain belt.

FIG. 8 is a side view with the same part omitted.

FIG. 9 is a plan view of a coating tank.

FIG. 10 is a cross-sectional view taken along line AA of FIG.

11A and 11B show a conventional example, wherein FIG. 11A is an explanatory diagram of a dip process, FIG. 11B is an explanatory diagram of a rubber roller after the dip process,
(C) is an explanatory view in the case of overpainting.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Apparatus for applying paint to roller surface 2 Roller conveying means 2A Upper linear conveying part 3 Rubber roller 4 Coating tank 16 Roller take-out device 17 Movable receiving member 17a Roller receiving stand 18 Roller stock table 22 Roller receiving member 25 Magnet 26 Rail member 41 Connection Plate 42 Detection dog 43 Start detection sensor 44 Chain guide detection sensor 51 Circumferential receiving tank

Claims (3)

[Claims] 1. A coating material is applied to a roller surface by applying a coating material to a roller surface by conveying the coating material on a roller surface by rotating the roller to be processed over a storage tank in which a liquid coating material is stored. A roller take-out device for taking out a roller to be processed from a continuous coating machine, a roller monitoring means for monitoring a roller to be processed on which a coating material is first applied, and a signal from the roller monitoring means. Receiving means for detecting that a predetermined number of coatings have been applied to the roller to be processed, and a movable receiving member, receiving signals from the roller monitoring means and the coating number detecting means, and After coating,
A roller take-out means for moving the movable receiving member and taking out the roller from the first applied roller sequentially. 2. The movable receiving member has a roller receiving base in an inclined state, is movable between a roller take-out position and a standby position, and is provided continuously with the movable receiving member. 2. The apparatus for removing rollers from a continuous coating machine according to claim 1, further comprising a roller stock table for storing the rollers to be processed taken out by the table. 3. The left and right endless chain belts driven by rotation, left and right roller receivers attached to the chain links of the endless chain belts and engaged with rollers to be processed from below, and And a connecting plate for connecting the left and right roller receiving members, wherein the roller take-out means causes the movable receiving member to enter the lower side of the roller to be processed between the left and right endless chain belts at the roller take-out position. 3. An apparatus for removing a roller from a continuous coating machine according to claim 1.